Common Name: Denison Barb (also known as the Red Line Torpedo Barb or Roseline Shark)
Scientific Name: Sahyadria denisonii
Genus: Sahyadria
Wild Origin: Fast-flowing rivers and streams of the Western Ghats, India
The Denison Barb is a striking freshwater fish known for its sleek, torpedo-shaped body and vivid coloration. It features a bold red stripe running from its nose through its eye, with a contrasting black stripe extending from mid-body to the tail, and often has hints of yellow near its tail fin. This vibrant appearance makes the Denison Barb a standout in any aquarium. These fish can grow up to 5-6 inches (12-15 cm) in length and are known for their active, schooling behavior, making them an excellent choice for larger, well-established community tanks.
Habitat and Tank Requirements:
In the wild, Denison Barbs inhabit fast-flowing, clear streams with plenty of oxygen. To replicate these conditions in a home aquarium, it is important to provide ample swimming space and maintain clean, well-oxygenated water.
Tank Size and Water Parameters:
| PARAMETER | RECOMMENDED |
|---|---|
| Tank Size | Minimum 250 litres |
| Temperature | 72-77°F (22-25°C) |
| pH | 6.5-7.5 |
| Hardness | Soft to moderately hard water, 5-12 dGH |
Denison Barbs require a spacious tank due to their active nature and their preference for swimming in groups. A strong filtration system is essential to keep the water clean and oxygen-rich, replicating the fast-flowing waters of their natural habitat. A tank decorated with smooth rocks, driftwood, and plants, with open areas for swimming, is ideal.

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